| Aspen Shale | |
|---|---|
| Stratigraphic range: Cretaceous | |
| Type | Formation |
| Location | |
| Region | Wyoming |
| Country | United States |
The Aspen Shale is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.
Protosphargis is an extinct genus of sea turtle from the Upper Cretaceous of Italy. It was first named by Capellini in 1884.
The Evanston Formation is a geological formation in Wyoming whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. The fossil formation also has the remains of prehistoric mammals from the Paleocene epoch. Mammal fossils have been found in Paleocene rocks here too.
Jeletzkytes is an extinct genus of scaphatoid ammonite from the Upper Cretaceous (Maastrichtian) of North America named and described by Riccardi, 1983. In overall form Jeletzkytes closely resembles the genus Scaphites.
Toxolophosaurus was a sphenodont from the Early Cretaceous-age Kootenai Formation of Montana.
The Tuscaloosa Formation is a geologic formation in Alabama. It preserves fossils dating back to the Cretaceous period.
The Navarro Group is a geologic group in Arkansas, Texas and Coahuila, Mexico. It preserves fossils dating back to the Cretaceous period.
The Coleraine Formation is a geologic formation in Minnesota. It preserves fossils dating back to the Cretaceous period.
The Montana Group is a geologic group in South Dakota. It preserves fossils dating back to the Cretaceous period.
The Washita Group is a geologic group in Texas. It preserves fossils dating back to the Cretaceous period.
The Belle Fourche Formation or Belle Fourche Shale is a fossiliferous early Late-Cretaceous geologic formation classification in Wyoming. Named for outcrops in Belle Fourche River, Wyoming, this unit name is also used in Montana, North Dakota, and South Dakota.
The Meteetse Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.
The Newcastle Sandstone is a geologic formation in Wyoming, United States. It preserves fossils dating back to the Late Cretaceous period.
The Hailey Shales Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.Plesiopleurodon was found in this formation.
The Rock Springs Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.
The North Park Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Neogene period.
The Bighorn Dolomite is a geologic formation in Wyoming. It preserves fossils dating back to the Ordovician period.
The Minnekahta Formation is a geologic formation in Wyoming, United States. It preserves fossils dating back to the Permian period.
The Satanka Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Permian period.
The Jelm Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
Anatolemys is an extinct turtle genus in the family Macrobaenidae. Two species are known, both of which lived in the Late Cretaceous. Fossils were discovered in the Yalovach Formation of Tajikistan, the Kulbikin Member and Khodzhakul and Bissekty Formations of Uzbekistan and the Bostobe Formation of Kazakhstan.
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